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Author Topic: Possible to check integrity of APE files?  (Read 2287 times)

sapnho

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Possible to check integrity of APE files?
« on: January 01, 2005, 07:11:23 am »

I recently had a power failure while MC was writing to the disk changing file properties. I have >20k APE files on my server and I was wondering if there was an automatic way to check the file integrity of the APE files.
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bspachman

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Re: Possible to check integrity of APE files?
« Reply #1 on: January 02, 2005, 01:22:24 am »

Yep. The full monkey's audio package has a "Verify" command in it. Check it out at www.monkeysaudio.com.

Best,
Brad
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sapnho

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Re: Possible to check integrity of APE files?
« Reply #2 on: January 02, 2005, 04:06:31 am »

Thanks for this.

Unfortunately my suspicion has been confirmed that during a copy process some APE files got corrupted and are now reported as "invalid checksum". The backup copy that I kept on an external drive, however, seems to be fine. What happens is that there are a few seconds of silence in the "invalid checksum" files when I play them on MC.

You are really wondering what causes this. I don't think it has anything to do with MC but you wonder how reliable computer hardware really is. As some threads here indicate, this is not a completely isolated issue, unfortunately.

I remember that when I built the fileserver (where I discovered the errors), I initially used a 40 cable instead of an 80 on two of the four harddisks. Could that have anything to do with that?

BTW, does MA have the "verify" option on in MC?
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Richard Berg

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Re: Possible to check integrity of APE files?
« Reply #3 on: January 02, 2005, 02:12:13 pm »

Quote
I remember that when I built the fileserver (where I discovered the errors), I initially used a 40 cable instead of an 80 on two of the four harddisks. Could that have anything to do with that?
If your drive controller didn't automatically step down to UDMA-2 (which it's supposed to), then yes.  It could also be a physical error, firmware bug, network glitch...
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